"""
Copyright (c) 2022 Huawei Technologies Co.,Ltd.

openGauss is licensed under Mulan PSL v2.
You can use this software according to the terms and conditions of the Mulan PSL v2.
You may obtain a copy of Mulan PSL v2 at:

          http://license.coscl.org.cn/MulanPSL2

THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
See the Mulan PSL v2 for more details.
"""
"""
Case Type   : 防篡改
Case Name   : 新建用户测试
Create At   : 2022/3/8
Owner       : @daiguatutu
Description :
    1.设置参数并重启数据库enableSeparationOfDuty=on
    gs_guc set -N all -I all -c enableSeparationOfDuty=on;
    gs_om -t restart
    2.创建一个安全管理员1
    create user u_author_account_0009 with createrole password 'test@123';
    3.切换新用户1创建数据库和可以创建数据库的用户2
    create database db1;
    create user u_author_account_0009 with createdb password 'test@123';
    4.切换新用户1查看普通用户默认的权限
    \du u_author_account_0009_1;
    5.切换新用户1修改普通用户权限
    alter user u_author_account_0009_1  with createrole  password 'test@654';
    6.清理环境
    drop user u_author_account_0009,u_author_account_0009_1 cascade;
    gs_guc set -N all -I all -c enableSeparationOfDuty=off;
    gs_om -t restart
Expect      :
    1.成功
    2.成功
    3.创建数据库失败,创建用户成功
    4.成功,CREATEROLE
    5.失败
    6.清理环境成功
History     :
"""

import os
import unittest

from testcase.utils.Common import Common
from testcase.utils.CommonSH import CommonSH
from testcase.utils.Constant import Constant
from testcase.utils.Logger import Logger
from yat.test import Node
from yat.test import macro


class Security(unittest.TestCase):
    def setUp(self):
        self.log = Logger()
        self.log.info(f'-----{os.path.basename(__file__)} start-----')
        self.pri_node = Node(node='PrimaryDbUser')
        self.pri_sh = CommonSH('PrimaryDbUser')
        self.constant = Constant()
        self.common = Common()
        self.db_name = 'db_security_authen_account_0009'
        self.u_name = 'u_security_authen_account_0009'
        self.u_name_01 = 'u_security_authen_account_0009_01'
        self.default_value1 = self.common.show_param('enableSeparationOfDuty')

    def test_security(self):
        text = '-----step1：设置参数并重启数据库enableSeparationOfDuty=on; ' \
               'expect:成功-----'
        self.log.info(text)
        mod_msg = self.pri_sh.execute_gsguc('set',
                                            self.constant.GSGUC_SUCCESS_MSG,
                                            'enableSeparationOfDuty=on')
        self.assertTrue(mod_msg, '执行失败:' + text)
        result = self.pri_sh.restart_db_cluster()
        self.assertTrue(result, '执行失败' + text)

        text = '-----step2：创建新用户1,角色和表 expect:成功-----'
        self.log.info(text)
        create_cmd = f"drop user if exists {self.u_name}," \
            f"{self.u_name_01} cascade; " \
            f"create user {self.u_name} with createrole " \
            f"password '{macro.GAUSSDB_INIT_USER_PASSWD}';"
        msg = self.pri_sh.execut_db_sql(create_cmd)
        self.log.info(msg)
        self.assertIn(self.constant.DROP_ROLE_SUCCESS_MSG, msg,
                      '执行失败:' + text)
        self.assertIn(self.constant.CREATE_ROLE_SUCCESS_MSG, msg,
                      '执行失败:' + text)

        text = f'-----step3：切换新用户1创建数据库和可以创建数据库的用户2; expect:失败-----'
        self.log.info(text)
        sql = f"drop database if exists {self.db_name};" \
            f"create database {self.db_name};" \
            f"create user {self.u_name_01} with createdb " \
            f"password '{macro.GAUSSDB_INIT_USER_PASSWD}';"
        connect = f'-U {self.u_name} -W {macro.GAUSSDB_INIT_USER_PASSWD}'
        msg = self.pri_sh.execut_db_sql(sql, sql_type=connect)
        self.log.info(msg)
        self.assertIn(self.constant.DROP_DATABASE_SUCCESS, msg,
                      '执行失败:' + text)
        self.assertIn(self.constant.PERMISSION_DENIED, msg, '执行失败:' + text)
        self.assertIn(self.constant.CREATE_ROLE_SUCCESS_MSG, msg,
                      '执行失败:' + text)

        text = '-----step4：切换新用户1查看普通用户默认的权限 expect:成功-----'
        self.log.info(text)
        sql = f"\du {self.u_name_01}"
        connect = f'-U {self.u_name} -W {macro.GAUSSDB_INIT_USER_PASSWD}'
        msg = self.pri_sh.execut_db_sql(sql, sql_type=connect)
        self.log.info(msg)
        self.assertIn('Create DB', msg, '执行失败:' + text)

        text = f'-----step5：切换新用户1修改普通用户权限; expect:成功-----'
        self.log.info(text)
        sql = f"alter user {self.u_name_01}  with createrole  " \
            f"password '{macro.GAUSSDB_INIT_USER_PASSWD}';"
        connect = f'-U {self.u_name_01} -W {macro.GAUSSDB_INIT_USER_PASSWD}'
        msg = self.pri_sh.execut_db_sql(sql, sql_type=connect)
        self.log.info(msg)
        self.assertIn('Permission denied', msg, '执行失败:' + text)

    def tearDown(self):
        self.log.info('-----step6：清理环境-----')
        text1 = '-----删除用户 expect:成功-----'
        self.log.info(text1)
        drop_cmd = f"drop user if exists {self.u_name}," \
            f"{self.u_name_01} cascade; "
        drop_msg = self.pri_sh.execut_db_sql(drop_cmd)
        self.log.info(drop_msg)

        text2 = '-----修改参数enableSeparationOfDuty为初始值并重启数据库 expect:成功-----'
        self.log.info(text2)
        mod_msg1 = self.pri_sh.execute_gsguc('set',
                                             self.constant.GSGUC_SUCCESS_MSG,
                                             f'enableSeparationOfDuty='
                                             f'{self.default_value1}')
        restart_res = self.pri_sh.restart_db_cluster()

        self.log.info('-----断言tearDown执行成功-----')
        self.assertIn(self.constant.DROP_ROLE_SUCCESS_MSG, drop_msg,
                      '执行失败:' + text1)
        self.assertTrue(mod_msg1, '执行失败:' + text2)
        self.assertTrue(restart_res, '执行失败:' + text2)
        self.log.info(f'-----{os.path.basename(__file__)} end-----')
